溞类急性毒性试验中阳性参比毒物的筛选  

Screening of the Positive Reference Toxic Substance in the Acute Toxicity Test of Daphnia

作　　者：郁斯贻 朱梦杰[1] 汤琳[1] 吴阿娜[1] 汪琴[1] 邓飞 YU Si-yi;ZHU Meng-jie;TANG Lin(Shanghai Environmental Monitoring Centre,Shanghai 200235)

机构地区：[1]上海市环境监测中心

出　　处：《安徽农业科学》2019年第19期91-92,98,共3页Journal of Anhui Agricultural Sciences

摘　　要：以硫酸锌、硫酸镉和苯酚作为受试毒物,以大型溞为受试生物,开展了急性毒性试验中阳性参比毒物的筛选试验,测定了反应24和48h后各浓度参比毒物中大型溞的抑制率,确定硫酸锌和硫酸镉可作为大型溞急性毒性试验的阳性参比毒物。硫酸锌的24hEC50和48hEC50分别为3.936和2.782mg/L,硫酸镉的24hEC50和48hEC50分别为0.745和0.356mg/L,为今后溞类毒性试验的开展提供参考和依据。Using zinc sulfate,cadmium sulfate and phenol as test toxic substances,Daphnia magna was selected as subjects test organism to conduct a screening study on positive reference toxic substances in acute toxicity test.The inhibition rates of test toxic substances at each concentration level to D.magna after 24 and 48 hours were recorded.And the results showed zinc sulfate and cadmium sulfate could be used as positive reference toxic substances for the acute toxicity tests of daphnia.24 h EC 50 and 48 h EC 50 of zinc sulfate to D.magna were 3.936 and 2.782 mg/L respectively.24 h EC 50 and 48 h EC 50 of cadmium sulfate to D.magna were 0.745 and 0.356 mg/L respectively.This research provided reference and basis for conducting the toxicity tests of daphnia in the future.

关 键 词：溞类 参比毒物 毒性试验 

分 类 号：X83[环境科学与工程—环境工程]